<style>
    div {
        width: 1000px;
        height: 1000px;
        border: 50px solid magenta;
    }

    #a {
        background-color: yellow;
    }

    #b {
        background-color: blue;
    }
</style>
<script src="include.js"></script>
<script>
    asyncTest(done => {
        document.addEventListener("scroll", (event) => {
            println("The page has been scrolled to y: " + window.scrollY);
            done();
        });

        window.scrollTo(0, 2000);
    });
</script>
<div id="a"></div>
<div id="b"></div>
